{"action":"Upgrade @nestjs/microservices to 11.1.19 or later.","affected":[{"fixed":"11.1.19","introduced":"0"}],"component":"@nestjs/microservices","cve_ids":["CVE-2026-40879"],"ecosystem":"npm","epss":0.00329,"exploited":false,"fixed_versions":["11.1.19"],"ghsa_id":"GHSA-hpwf-8g29-85qm","id":"tcs_01M5KFVRCS2QFP6C3GYM7679V0","modified_at":"2026-05-05T16:07:32.834605Z","published_at":"2026-04-14T00:15:09Z","references":["https://osv.dev/vulnerability/GHSA-hpwf-8g29-85qm","https://github.com/nestjs/nest/security/advisories/GHSA-hpwf-8g29-85qm","https://nvd.nist.gov/vuln/detail/CVE-2026-40879","https://github.com/nestjs/nest"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-hpwf-8g29-85qm","url":"https://osv.dev/vulnerability/GHSA-hpwf-8g29-85qm"}],"summary":"Nest Affected by DoS via Recursive handleData in JsonSocket (TCP Transport)"}